The New South Wales Ministry for Transport has commenced operations on the Sydney Metro M1 Metro Northwest and Bankstown Line running between Tallawong and Sydenham, NSW, Australia.

The new M1 Line features 45 modern metro trains, each with a capacity of around 1,150 passengers. These trains run through six new underground stations—Crows Nest, Victoria Cross, Barangaroo, Martin Place, Gadigal, and Waterloo—along with new platforms at Central Station and Sydenham. Spanning 51 km between Tallawong and Sydenham, the Sydney Metro now serves 21 stations. The line can move more people across Sydney Harbour during peak times than the Sydney Harbour Bridge and Tunnel combined, with trains running every four minutes. 

Plenary's involvement with Sydney Metro began as the financial sponsor of the NRT consortium, which was selected to deliver the Metro North West line through PPP. This included integrating new rail systems and rolling stock into a unified metro line operated and maintained by the private sector. Over AU$3 billion (US$ 2 billion) in private capital was invested to help fund this transformative project. The next phase of Sydney Metro's expansion will extend services from Sydenham to Bankstown.